16 lines
427 B
TypeScript
16 lines
427 B
TypeScript
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/**
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* 根据指定字段对对象数组进行去重
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* @param arr 要去重的对象数组
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* @param key 去重依据的字段名
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* @returns 去重后的对象数组
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*/
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function uniqueByField<T>(arr: T[], key: keyof T): T[] {
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const seen = new Map<any, T>();
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return arr.filter((item) => {
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const value = item[key];
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return seen.has(value) ? false : (seen.set(value, item), true);
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});
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}
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export { uniqueByField };
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